CN104879522A - Floating spherical crown sealed metal seal ball valve - Google Patents
Floating spherical crown sealed metal seal ball valve Download PDFInfo
- Publication number
- CN104879522A CN104879522A CN201510313003.5A CN201510313003A CN104879522A CN 104879522 A CN104879522 A CN 104879522A CN 201510313003 A CN201510313003 A CN 201510313003A CN 104879522 A CN104879522 A CN 104879522A
- Authority
- CN
- China
- Prior art keywords
- ball
- spheroid
- valve
- plane
- circular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/204—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the plugs or parts of the plugs mechanically pressing the seals against the housing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0668—Single packings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0684—Packings on the plug
Abstract
The invention relates to a floating spherical crown sealed metal seal ball valve comprising a valve body, a valve seat, a ball and a valve stem. The floating spherical crown sealed metal seal ball valve is mainly characterized in that two sides of a through hole of the ball are provided with two planes, respectively; the center of each plane is provided with a round cavity, a ball clack is mounted in each round cavity; the ball clacks are in moving fit connection with the round cavities arranged in the ball, through round bosses; the upper and lower ends of spherical joints of the ball and the ball clacks are provided with two positioning rings, respectively, which are concentric to the valve stem; on the radial outsides of the round bosses, circular spring cavities are provided between the planes of the ball clacks and the planes of the ball; a spring is mounted in each circular spring cavity; on the outsides of the circular spring cavities, circular seal grooves are provided between the planes of the ball clacks and the planes of the ball; a metal seal ring is mounted in each circular seal groove. The floating spherical crown sealed metal seal ball valve has the advantages that the ball clacks move flexibly on the ball, the valve is good in temperature tolerance and the vale is suitable for high-temperature and ultralow-temperature medium conditions.
Description
Technical field
The invention belongs to valve field, particularly about a kind of metal hard-sealing ball valve.The present invention is applicable to high temperature, low temperature, high pressure, the high wear working condition of particle media.
Background technique
High-temperature hard sealing ball valve uses many in high temperature, high wear medium operating mode, in order to prevent valve seat and spheroid high-temperature expansion stuck, general employing floating valve seat absorbs high-temperature expansion amount between the two, but the spring chamber between valve seat radial direction and valve body inner round wall easily enters media particle and blocks, and makes valve seat lose float function.For this reason, prevent spring chamber from entering medium and become product structure design and the key ensureing product performance.If the patent No. is the scraper type two-way high-temperature metal hard-sealed ball valve of ZL200510122892.3, comprise valve body, valve seat, spheroid, valve rod and Sealing and assembling set, valve body is that left valve barrel is connected by assembling set with right valve barrel, valve seat is respectively equipped with in left valve barrel and right valve barrel, one of them valve seat is floating valve seat, between the valve body and floating valve seat of valve pocket side, seal arrangement is set, in the spring place cavity preventing the medium impurity in valve pocket from entering between floating valve seat and valve body, avoid the swollen dead phenomenon of worst hot case spheroid.But, sealing device also can by radial extremely swollen between floating valve seat and valve body when high-temperature expansion, and, carbon seal ring is adopted to seal between the valve seat of the spring chamber the other end and valve body, in floating valve seat travel engineering, make carbon seal ring radial direction produce wearing and tearing, make media particle enter spring chamber, make floating valve seat lose float function, make spheroid and valve seat high temperature swollen dead or ultralow temperature is stuck.
Summary of the invention
The object of the invention is the shortcoming existed for prior art, provide a kind of and can prevent the swollen dead or floating spherical crown plugging type metal seal ball valve that ultralow temperature is stuck of high temperature between spheroid and valve seat.
Technological scheme of the present invention comprises valve body, valve seat, spheroid, valve rod, and valve body is imported and exported in passage and is respectively equipped with valve seat, is shaped with the through hole with valve channel equal diameters in spheroid; Mainly respectively be shaped with a plane in spheroid through hole both sides, two plane symmetry are located on the spheroid of valve rod center line and plane both sides, spheroid through hole center line place, and three planes are parallel to each other; The center of spheroid two side plane is shaped with circular shrinkage hole respectively; Each installation one ball clack in the circular shrinkage hole of spheroid both sides, ball clack is connected by the circular shrinkage hole on circular projection and spheroid is dynamic, circular projection end face and circular shrinkage hole bottom surface Spielpassung, a positioning ring is respectively installed at the two ends up and down of the sphere joint between spheroid and ball clack, and two positioning rings are concentric with valve rod; Annular spring chamber is shaped with, mounting spring in annular spring chamber between the ball clack plane and spheroid plane of circular projection radial outside; Be provided with annular seal groove between ball clack plane outside annular spring chamber and spheroid plane, in annular seal groove, ring shaped metallic seal ring be installed.
In above technological scheme, ring shaped metallic seal ring adopts elastic metal sealing ring.
Advantage of the present invention is each floating installation one ball clack in spheroid two side plane, when high temperature or ultralow-temperature operation conditions lower valve are closed, utilizes the axial float of ball clack on spheroid to absorb the amount of expanding with heat and contract with cold, prevent ball clack and valve seat stuck; Between each parts in runner direction, the sealing of stationary seal circle, avoids dynamic seal ring and moves wearing and tearing and cause sealing problem; Between annular spring chamber out course body plane and ball clack plane, be provided with ring shaped metallic seal ring, prevent impurity from entering in annular spring chamber, guarantee that ball clack floats flexibly on spheroid, improve the operational reliability of high temperature, ultralow temperature mixture condition.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
1 valve body, 2 valve seats, 3 spheroids, 4 ball clacks, 5 springs, 6 ring shaped metallic seal rings, 7 trim rings, 8 valve rods, 9 positioning rings, 10 metal o-rings, 11 circular projections.
Embodiment
Floating spherical crown plugging type metal seal ball valve as shown in Figure 1, comprise valve body 1, valve seat 2, spheroid 3, valve rod 8, valve body 1 is imported and exported in passage and is respectively equipped with valve seat 2, the through hole equal with valve body 1 channel diameter is shaped with in spheroid 3, valve seat 2 sealing surface and spheroid 3 surface spraying weld high-abrasive material, spheroid 3 through-hole inner surface spraying wear-resistant materials, a plane is respectively shaped with in the both sides of spheroid 3 through hole, two plane symmetry are located on the spheroid 3 of valve rod 8 center line and plane both sides, spheroid 3 through hole center line place, and three planes are parallel to each other, namely be parallel to each other by valve rod 8 center line and the plane at spheroid 3 through hole center line place and two planes of spheroid 3 both sides, and two plane separations of spheroid 3 both sides are equal by the distance of valve rod 8 center line and spheroid 3 through hole center line place plane, the center of spheroid 3 liang of side planes is shaped with circular shrinkage hole respectively, and when spheroid 3 is closed, the center line of both sides circular shrinkage hole overlaps with valve body 1 channel centerline, each installation one ball clack 4 in the circular shrinkage hole of spheroid 3 liang of side planes, ball clack 4 is connected by circular projection 11 and the circular shrinkage hole on spheroid 3 are dynamic, circular projection 11 end face and circular shrinkage hole bottom surface Spielpassung, ball clack 4 can be floated in the circular shrinkage hole of spheroid 3 plane, the spherical diameter of ball clack 4 is equal with the spherical diameter of spheroid 3, sphere and valve seat 2 sealing surface of ball clack 4 cooperatively interact, the surface spraying high-abrasive material of ball clack 4, a positioning ring 9 is respectively installed at the two ends up and down of the sphere joint between spheroid 1 and ball clack 4, two positioning rings 9 are concentric with valve rod 8, positioning ring 9 is fixedly mounted on spheroid 3 by screw, there is the curved surface identical with spheroid 3, Spielpassung between positioning ring 9 and ball clack 4, prevent ball clack 4 from coming off from spheroid 3, also can adopt and install and spheroid 3 at valve body 1 inner chamber, what ball clack 4 cooperatively interacted curved surface holds block tightly, in valve opening and closing process, all the time ball clack 4 is held tightly by holding block tightly, prevent ball clack 4 from coming off from spheroid 3, annular spring chamber is shaped with between ball clack 4 plane and spheroid 3 plane of circular projection 11 radial outside, mounting spring 5 in annular spring chamber, this spring 5 adopts butterfly spring, also helical spring can be adopted, under the elastic reaction of spring 5, ball clack 4 is floated between positioning ring 9 and spheroid 3, avoids flap 4 and valve seat 2 stuck, ball clack 4 plane outside annular spring chamber and be provided with annular seal groove between spheroid 3 plane, ring shaped metallic seal ring 6 is installed in annular seal groove, annular seal groove, annular spring chamber are concentric with circular shrinkage hole, ring shaped metallic seal ring 6 stops medium impurity to enter annular spring chamber, ensures the flexible reliability of annular spring chamber inner spring 5, valve seat 2 is fixedly mounted in valve body 1 passage by trim ring 7, and valve seat 2 also can adopt floating structure.
Ring shaped metallic seal ring 6 adopts elastic metal sealing ring, better realizes the sealing between ball clack 4 and spheroid 3 when ball clack 4 is floated in the circular shrinkage hole of spheroid 3.Ball clack 4 inside ring shaped metallic seal ring 6 and fill seal gease between spheroid 3 plane and in annular spring chamber, the more effective medium impurity that prevents enters annular spring chamber.
Valve body 1 adopts left valve barrel and right valve barrel composition, installs metal o-ring 10, realize being tightly connected between left valve barrel and right valve barrel between left valve barrel and right valve barrel.Valve body 1 also can adopt solid forging or casting, and make spheroid 3 adopt upper dress formula structure, these structures belong to known technology.
Spheroid 3 upper end is fixedly connected with valve rod 8 lower end, and spheroid 3 lower end and lower plug cover move and be connected, and forms fixing ball linkage structure.Spheroid 3 also can adopt floating ball structure.Medium promotes spheroid 3 makes outlet side ball clack 4 coordinate with outlet side valve seat 2 press seal, realizes two way sealed function.To having severe corrosive and strong erosion mixture condition, spheroid 3, ball clack 4, valve seat 2 adopt stupalith, and these belong to known technology.
Claims (2)
1. a floating spherical crown plugging type metal seal ball valve, comprise valve body (1), valve seat (2), spheroid (3), valve rod (8), valve body (1) is imported and exported in passage and is respectively equipped with valve seat (2), is shaped with the through hole equal with valve body (1) channel diameter in spheroid (3); It is characterized in that respectively being shaped with a plane in the both sides of spheroid (3) through hole, two plane symmetry are located on the spheroid (3) of valve rod (8) center line and plane both sides, spheroid (3) through hole center line place, and three planes are parallel to each other; The center of spheroid (3) two side plane is shaped with circular shrinkage hole respectively; Each installation one ball clack (4) in the circular shrinkage hole of spheroid (3) two side plane, ball clack (4) is connected by circular projection (11) and the circular shrinkage hole on spheroid (3) are dynamic, circular projection (11) end face and circular shrinkage hole bottom surface Spielpassung, a positioning ring (9) is respectively installed at the two ends up and down of the sphere joint between spheroid (1) and ball clack (4), and two positioning rings (9) are concentric with valve rod (8); Annular spring chamber is shaped with, mounting spring (5) in annular spring chamber between ball clack (4) plane and spheroid (3) plane of circular projection (11) radial outside; Be provided with annular seal groove between ball clack (4) plane outside annular spring chamber and spheroid (3) plane, ring shaped metallic seal ring (6) is installed in annular seal groove.
2. floating spherical crown plugging type metal seal ball valve according to claim 1, is characterized in that ring shaped metallic seal ring (6) adopts elastic metal sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510313003.5A CN104879522A (en) | 2015-06-05 | 2015-06-05 | Floating spherical crown sealed metal seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510313003.5A CN104879522A (en) | 2015-06-05 | 2015-06-05 | Floating spherical crown sealed metal seal ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104879522A true CN104879522A (en) | 2015-09-02 |
Family
ID=53947132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510313003.5A Pending CN104879522A (en) | 2015-06-05 | 2015-06-05 | Floating spherical crown sealed metal seal ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104879522A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678386A (en) * | 2015-11-10 | 2017-05-17 | 王姝 | Partitioned cavity valve |
| CN110173574A (en) * | 2019-06-21 | 2019-08-27 | 邵延荣 | A kind of long life ball valve |
| CN110185812A (en) * | 2019-06-17 | 2019-08-30 | 韩国昊 | A kind of ball valve |
| CN112096900A (en) * | 2020-07-27 | 2020-12-18 | 中国石化销售股份有限公司华南分公司 | Telescopic frictionless ball valve driven by cooperation of linear motor and swing oil cylinder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598252A (en) * | 2008-06-06 | 2009-12-09 | 王加新 | The elastic pawl that is used for pipeline, valve and valve seat and spool is connected sealing configuration |
| CN201705978U (en) * | 2010-04-30 | 2011-01-12 | 太仓优尼泰克精密机械有限公司 | Metal hard sealing ball valve of elastic ball |
| EP2631515A2 (en) * | 2012-02-23 | 2013-08-28 | Johnson Electric S.A. | Plug valve with a spring biased plug |
| CN104334940A (en) * | 2012-05-23 | 2015-02-04 | 卡梅伦国际有限公司 | Protective facial sealing arrangement |
| CN204692644U (en) * | 2015-06-05 | 2015-10-07 | 王照业 | Float spherical crown plugging type metal seal ball valve |
-
2015
- 2015-06-05 CN CN201510313003.5A patent/CN104879522A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598252A (en) * | 2008-06-06 | 2009-12-09 | 王加新 | The elastic pawl that is used for pipeline, valve and valve seat and spool is connected sealing configuration |
| CN201705978U (en) * | 2010-04-30 | 2011-01-12 | 太仓优尼泰克精密机械有限公司 | Metal hard sealing ball valve of elastic ball |
| EP2631515A2 (en) * | 2012-02-23 | 2013-08-28 | Johnson Electric S.A. | Plug valve with a spring biased plug |
| CN104334940A (en) * | 2012-05-23 | 2015-02-04 | 卡梅伦国际有限公司 | Protective facial sealing arrangement |
| CN204692644U (en) * | 2015-06-05 | 2015-10-07 | 王照业 | Float spherical crown plugging type metal seal ball valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678386A (en) * | 2015-11-10 | 2017-05-17 | 王姝 | Partitioned cavity valve |
| CN110185812A (en) * | 2019-06-17 | 2019-08-30 | 韩国昊 | A kind of ball valve |
| CN110173574A (en) * | 2019-06-21 | 2019-08-27 | 邵延荣 | A kind of long life ball valve |
| CN112096900A (en) * | 2020-07-27 | 2020-12-18 | 中国石化销售股份有限公司华南分公司 | Telescopic frictionless ball valve driven by cooperation of linear motor and swing oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150902 |